Pumping mechanism



' 1,590,889 a. c. CURBY PUMPINGMECHANISM June 29 1926.

Filed August 6. 1924 2 Sheets-Sheet 2 B.C.Curb ,y

Patented June 29, 19 26 UNITED STATES" PATENT OFFICE.

BERNARD C. CUR/BY} OF KANKAKEE, ILLINOIS.

PUMPING MECHANISM.

Application filed August 6, 1924. Serial No. 730,468. I

This invention relates to pumping mecha nism and has for its object the provision of simple mechanism whereby the pump rod may be driven from a self-contained motor,

I and it also has for an object the provision of a pumping mechanism in which the parts will be compactly arranged so as to occupy but little space. The invention is illustrated in the accompanying drawings and '10 consists in certain novel features which will be hereinafter first fully described and then particularly pointed out in the appended claims.

In the drawings: Figure 1 .1S a side elevation, partly broken away, of an apparatus embodying my pres ent invention;

Fig. 2 is an end elevation of the same, and Fig. 3 is a front elevation. In carrying out my invention, I employ a base plate or platform 1 upon which is erected standard or main support 2 and in spaced relation to said standard or main support is erected a guiding frame 3 through which the pump rod t operates. The guidmg frame 3 consists of spaced uprightscom mected by cross bars or beams 5 provided imparted directly to the pump rod. At its rear end, the arm or lever 8 is provided with a spherical socket in its upper side, as indicated at 10, to receive a globular head on the lower end of a pitman 11. and upon the upper side of the lever is secured a cap plate 12 having a recess or socket in its rear end whereby it may fit over the said globular head so as to retain the same in operative relation to the lever. The cap plate is secured upon the lever by a set screw 13 whereby it may be easily adjusted to take up wear upon the relatively moving parts.

To the rear side of the main support or ard 2.

standard 2, I secure a bracket 14 which has its upper end suitably formed to constitute a bearing 15 for the main driving worm shaft 16 which extends forwardly from the bearing through the standard 2 and is equipped at its front end with a pulley 17 provided eccentrically with a wrist; pin 18 upon'which the upperend of the pitman 11 is pivotally mounted. The pulley 17 is pref- 'erably grooved, as indicated at 19, whereby it may be utilized to transmit power to other mechanism througha suitable belt trained around thepulley. A second bracket 19 is;

also securedupon the standard 2, and this bracket is provided with rearwardly" projecting arms 20 and 21 whichprovide bearings for the winding shaft23 as well as for an intermediate shaftj2 i and a motor shaft 2.). The Winding shaft 23 and the motor shaft 25 are o'p'eratively connected through a train of gearing, indicated at 26, and a ratchet wheelj27 is also secured upon thev motor shaft and engaged by a pawl 28 mounted upon the arm 21 of the bracket 19. r

The motor shaft 25 extends into a drum 29 which is equipped at its inner end with a main worm gear 30 meshing with ,the worm 31 upon the main driving shaft 16, as shown clearly in Fig. 1. A volut'e spring is housed wlthin the drum and has one end secured to the drum and its opposite end secured to the shaft 25 so that the unwinding of the spring will rotate the drum and actuate the worm gear 30 to drive the shaft 16.

ing the ratchet 27.

Adjacent the main standard 2', the shaft 16 1S equipped with aworm gear 32 mesh- The spring is wound by'rotating the winding ing with a worm 33 on the lower end of a governor shaft 34: which is disposed obliquely, as shown most clearly in Fig. 1, and has its lower end fitted in a step bearing secured upon the support 2 and its upper end fitted in a bearing collar 36 secured in a cap plate 37 projecting from the main stand- A lower collar 38 is secured to the governor shaft and a disk 39 is slidably mounted upon the shaft adjacent the upper end of the same. Governor springs 40 are secured at their lower ends to the fixed collar 38 and at their upper ends to the disk extending arm at of the brake lever.

39, governor Weights ll being secured upon the springs between the ends of the same. A post 42 projects from the main standard 2 adjacent the upper end of the same and at one side of -the governor and a brake lever consisting of'a pendent arm 43 and an inwardly extending arm. id is loosely hung upon the outer end of said post. A spring 45 is coiled around theouter end of the post and has one end secured to the post and its opposite end engaged with the inwardly Y The end of the arm fi l projects under the disk 39'an'd is twisted, as indicated at- 46, so as to present a flat side to the under face of said disk. A second post 47 projects from the standard 7 2 below the post 42 and through the outer end of the said post 47 is threaded ,an adjusting screw 48 which has its lower end engaged in a lug 49 atthe lower end of thearm a As the main driving shaft 16 is rotated, the motion will be transmitted to the governor shaft and as the speed of the driving shaft increases the governor-"weights will fly outwardly under centrifugal force so as to pull downwardly upon the disk 39. Should the speed exceed a predetermined limit, the disk .will be broughtinto contact with the arm 44 of the brake lever and further increase in speed will be thereby prevented so that the pump will be driven with a steady movement and breakage pf parts due to violent reciproca tion of the pump rod will be avoided. The rotary motion of the drivingshaft is converted into reciprocatory motion of the lever 8 and the pump rod 4 will, of course, follow the vertical reciprocations of the said lever.

My improved pumping mechanism is exceedingly simple in the construction and arrangement of its parts so that it occupies little space and will operate efiiciently and directly to actuate the pump rod. The device will be found exceedingly advantageous in localities where wind power or other forms of generating power may not be available and it may be very readily set up without requiring the employment of highly skilled labor for a prolonged period of time. The employment of worm gearing provides for a steady even movement and also serves as means for preventing jerky operation of the parts or retrograde movement as the spring runs down.

the bearing opening and bearing bracket, a

second bearing bracket carried by said support atone side of the first-mentioned bearing bracket, a 'motor carried by the second bracket and including a rotary drum disposed between the brackets and a worm gear carried by the drum, a worm provided upon said drive shaft and operatively en gaged by the worm gear, a governor including a shaft rotatably connected with said support at one side of said drive shaft, and

gearing for transmitting rotary motion from said drive shaft to the shaft of said governor. v

:2. A structure of the character described comprising a base, a standard extending upwardly from said base, a bearing bracket extending from said standard and having an upwardly extending arm provided with a bearing, a drive shaft journaled in an opening formed in said standard and having one end journaled in the bearing of said arm, a second bearing bracket carried-by said standard to one side of the first bearing bracket, a motor including a spring drum between said bearing brackets and provided with a worm gear, a spring shaft extending axially from said drum and journaledin the second bracket, means car ied by the second bracket "for imparting winding motion to said spring shaft and preventing retrograde rotation thereof, a Worm upon said drive shaft engaged. with the worm gear of said;drum, a worm gear carried by said drive shaft, a thrust bearing carried by said standard adjacent said drive shaft, a bearing bracket extending from said standard above said thrust bearing, a governor including a shaft seated in said thrust bearing and extending upwardly therefrom in diverging relation to the standard and ournaled in the last-mentioned bearing, and a worm upon said governor shaft meshing with the Worm gear of said drive shaft.

In testimony whereof I afiix mv signature.

BERNARD c. CURBY. n. a] 

